space bar

noun

1. a horizontal bar on a typewriter keyboard that is depressed in order to resume typing one space to the right.
2. a horizontal bar on a computer keyboard that is depressed in order to move the cursor one space to the right or, often, to perform some function in a program.

space-bar

noun

1. a horizontal bar on a typewriter that is depressed in order to leave a space between words, letters, etc

Word History and Origins

Origin of space bar¹

First recorded in 1885–90

Example Sentences

The newest AI button will be marked by the ribbon-like Copilot logo and be located near the space bar.

From Seattle Times

In another, they offered longer access to social media the faster subjects could tap a space bar.

From Science Magazine

The boy’s father hit the space bar, and when the monitor lit up, the boy’s message exchanges with the dealer popped up on the screen.

From Washington Post

It uses screw-in stabilizers to minimize the rattle from larger keys like the space bar, and included silicon pads are designed to reduce any pinging noises while typing.

From The Verge

My hand hovered over the space bar as I hit play and pause over and over again to document every frame.

From Washington Post